<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb>
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getGoodsList()"
          >
            <template #append>
              <el-button
                icon="el-icon-search"
                @click="getGoodsList()"
              ></el-button>
            </template>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage()">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column
          label="商品价格（元）"
          prop="goods_price"
          width="95px"
        ></el-table-column>
        <el-table-column
          label="商品重量"
          prop="goods_weight"
          width="80px"
        ></el-table-column>
        <el-table-column label="商品创建时间" prop="add_time">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              width="140px"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              width="130px"
              @click="removeById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        :currentPage="queryInfo.pagenum"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        :page-sizes="[5, 10, 15, 20]"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        background
      >
      </el-pagination>
    </el-card>
  </div>
</template>
<script>
export default {
  data () {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodsList: [],
      // 总数组长度
      total: 0
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取商品列表
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取数据失败！')
      }
      this.$message.success('获取商品列表成功！')
      this.goodsList = res.data.goods
      this.total = res.data.total
      console.log(res.data)
    },
    // pagesize发生变化
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // pagenum发生变化
    handleCurrentChange (newpage) {
      this.queryInfo.pagenum = newpage
      this.getGoodsList()
    },
    // 删除商品
    async removeById (id) {
      const confirmReslt = await this.$confirm(
        '此操作将永久删除该商品, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      if (confirmReslt !== 'confirm') {
        return this.$message.info('已经取消删除')
      } else {
        const { data: res } = await this.$http.delete(`goods/${id}`)
        if (res.meta.status !== 200) {
          return this.$$message.error('删除失败！')
        }
        this.$message.success('删除成功！')
        this.getGoodsList()
      }
    },
    // 跳转添加商品的页面
    goAddPage () {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped></style>
